Physics
A man stands on the pan of a balance holding a fish in his right hand and bucket of water in his left hand. If he transfers the fish into the bucket, the total weight on the pan

First increases and then decreases
Increases
Decreases
Remains the same

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Physics
A capillary tube is partially dipped vertically in a vessel containing water. Due to capillarity water rises in the tube. The height of water rise in the tube can be increased by

None of these
Decreasing the radius of the capillary tube
Increasing the height of water in the vessel
Increasing the radius of the capillary tube

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Physics
Dynamo is a device for converting

Heat energy into electrical energy
Chemical energy into electrical energy
Magnetic energy into electrical energy
Mechanical energy into electrical energy

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